Ornamental design for a set of coupling members for a medical injection system



FIG. 1 is a perspective view of a female coupling member of a set of coupling members in accordance with the design of the present invention;

FIG. 2 is a perspective view of a male coupling member of the set of coupling members in accordance with the design of the present inventon;

FIG. 3 is a perspective view of the male and female coupling members coupled together;

FIG. 4 is a side elevational view of the male and female coupling members coupled together;

FIG. 5 is a plan view of the male and female coupling members coupled together;

FIG. 6 is a cross-section through the male and female coupling members coupled together; and,

FIG. 7 is a rear end view of the male and female coupling members coupled together. 

The ornamental design for a set of coupling members for a medical injection system, as shown and described. 